This summer, a mysterious HTC phone with some intriguing specs popped up in benchmark databases online. Its most interesting features? A quad-core processor and a 1080p display. At the time, it was known only as the HTC 6435. Now, it’s been revealed by Japanese carrier KDDI as the HTC J Butterfly.

Despite its rather meek-sounding name, this is a serious Android device. The Butterfly has a 1.5GHz quad-core Qualcomm Snapdragon processor — a workhorse, to be sure, but it falls a little short of what’s in the revamped HTC One X+. And like the One X+, HTC has packed in 2GB of RAM. On the storage front, however, the One X+ once again has the edge: the Butterfly has just half what HTC’s flagship does at 16GB.

The 8MP rear-facing camera keeps pace with competitors, and it’s complemented by a 2MP front-facing cam. The Butterfly will also be able to spread its wings on CDMA, GSM, and LTE airwaves, and it’s ready to handle all the NFC-powered tapping activities you can throw at it.

The real star of the show here, however, is the 5-inch 1080p display. If HTC can beat the Oppo Find 5 to market, the Butterfly will indeed be the first 1920 x 1080 five incher to hit the streets.

For now, the HTC J Butterfly is only slated for sale in Japan. However, those summer benchmarks pegged the 5-inch beast with Verizon branding on board. With an array of globe-trotting radios as standard, it’s definitely possible that this phone will migrate beyond the Land of the Rising Sun.

There’s some speculation that it could even pop up as yet another Nexus device some time before Christmas — next to LG’s offering, and maybe even one from Sony.